Fix #30, error using fetch when collection's url is a method
Update the code to check if url is a function

Also updates the test to ensure the url is passed to Backbone.ajax
Merge pull request #31 from abasak/fix-fetch-url

Fix error using fetch when collection's url is a function
Move test case for issue #31 to server-pageable.js
Fix #27
Bump version to 1.1.1